v3.22.2.2
Long-term Debt - Schedule of Long-Term Debt (Detail) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Debt Instrument [Line Items]    
Total principal amount $ 105,882 $ 106,985
Less: unamortized debt issuance costs (2,914) (3,309)
Total long-term debt, net 102,968 103,676
Surplus note    
Debt Instrument [Line Items]    
Total principal amount 5,882 6,985
5.625% Senior unsecured notes    
Debt Instrument [Line Items]    
Total principal amount $ 100,000 $ 100,000